Microsecond dwell time electron ptychography was conducted using a fast, event-driven Timepix3 [1]} camera in a probe-corrected FEI Themis Z instrument with a probe convergence angle of 30 mrad and a beam current of ca. 1 pA. 10 scan frames of \(1024\times 1024\)  probe positions were acquired sequentially at each tilt angle (\(0^\circ , \alpha =20^\circ ,\alpha =30^\circ \)  and \(\beta =15^\circ \) ) with a dwell time of 2. All 10 data sets were processed by the SSB method and the final images were aligned and averaged using non-rigid registration. The averaged images where further sequenced into smaller images and registered in order to improve the signal-to-noise and reduce the size of the reconstructed model. The algorithms for the SSB and the 3D reconstruction written in python can be found on gitlab [2]}.
